Suction-machine for conduits conveying loose, abrasive, and disinte grated materials.



L. A; GRIFFIN. SUCTION MACHINE FOR CONDUITS CONVEYING LOOSE ABRASWE AND DISINTEGRATED MATERIALS.

APP|.|CAT|0N FILED DEC. 4. I914.

Patented Sept. 14, .1915.

2 SHEETS-SHEET I.

L. A. GRIFFIN.

VEYING LOOSE ABRASIVE AND DISINTEGRATED MATERIALS. APPLICATION FILED DEC. 4, 1914.

SUCTION MACHINE FOR CONDUITS CON W li M afar? 2 SHEETS-SHEET 2.

Fay, 4:

5 1 9 1 M m. e g d m e m P 6 M K W Unnrnn srnrns LORNE A. GRIFFIN, OF ELKHART, INDIANA.

SUCTION-MACHINE FOR CONDUITS CONVEYING LOOSE, ABRASIVE, AND DISsIN'llE GRATEID MATERIALS.

Specification of Letters Patent.

Patented Sept. it,

Application filed December 4, 1914;. Serial No. 875,464.

.duits Conveying Loose, Abrasive, anu Disintegrated Materials; and I do. hereby declare the following to be a full and exact description of the invention, such as will enable others skilled in the art to which it .appertains to make and use the same.

Thisiiivention relates to suction apparatus for the conveyance of loose, abrasive .and more or less disintegrated material in conveyor conduits in which a jet of steam or fluid under pressure is discharged into an elbow fitting connected at one end with the discharge conduit pipe, and at its other end with a suction conduit open in any suitable manner for the reception, or intro-.

duction, of the material. to be handled by the conduit line.

WVhere ashes isthe material for conveyance and a steam jet is used to create the necessary vacuum, or suction, the ash -is projected violently against the bore of the el bow at all points thereof within the circle where the diverging steam jet strikes thesurface of the elbow bore. This condition results in uniform but heavy wear through-Y- out the circle of the steam jet contact and necessitates the protection of thecntire elbow bore at and adjacent to that point, especially at the points beyond the actual points of contact;

The objects of my invention are, first, the use of a wall section, or liner, to protect the entire upper half of the elbow bore from the extreme rear to the discharge nozzle, second, the use of an opening in the rear wall of the elbow for the insertion and removal of said upper liner, third, the use of removable wear liners in the lower bore of the elbow to cotiperate withi the upper liner and which may be renewed: without interference with the upper liner.

On account of the fact that the elbow top may be placed against a building wall,'or the side'oi' a building, when installed in a conduit line, it becomes important to be able 1' insert and remove the upper liner at the 'rear end thereof which is seldom if ever inaccessible for that purpose. And on account of the fact that one side or the other respectively, for connection, respectively of the elbow may be inaccessible it is important that the lower liner may be accessible from both'sides thereof.

In the annexed drawings, Figure .l is

a longitudinal section; Fig. 2 is a rear end elevation; Fig. 3 is a section on the line A-A of Fig. 1; Fig. i is a section on the line B-B; Fig. 5 is a longitudinal section. of liner C; Fig. 6 is a front end View of liner C; Fig. 7 is an elevation of cover plate G; Fig. 8 1s a section through the same plate; Fig. 9 is a longitudinal section through the liner 1); Fig. 10 is a fragmentary section showing a modified form of the upper liner.

The component parts of my invention are clearly shown on the annexed drawings wherein A is the flanged elbow body, B a removable top wear liner of segmental and semi cylindrical formation, C theforward bottom liner, D the rear bottom wear liner, E a handholc cover and plate, 1%

removable top cover plate, G the rear end T L i ii 'd d cover plate, 11 the nozzle or m tin or pressure, and J and K the side cover plates.

When assembled for operation the elbow has inlet and discharge openings 1 and 2,

with suction and discharge pipe lines. 7

"The top wear liner. B is segmental and semi cylindrical in formation and of substantially uniform thickness except as shown in the modified form in Fig. 10. It is inserted to the elbow interior through the semi crescent shaped opening3 formed in the rear wall of the'elbow and partially encompassing the fluid nozzle H and the opening 4: within which the nozzle is arranged. The

liner insertion opening 3 is sealed by the semi crescent shapedcover plate G secured in position by the studs and nuts 5. When the elbow is inclined toward or placed in a perpendicular position the plate G retains the liner B against rearward movement, or displacement.

In the top of the elbow body is arectangular opening 6 extending from the rear wall thereof to a pointadjacent the discharge nozzle flange 2 opening up the elbow interior when the liner B is removed, and communicatmg with the semi crescent shaped opening 3. ()pening 6 also communicates with the interior or the discharge nozzle 2 which is enlarged to receive the forward end of the liner B. The opening 3 is substantially concentric with said discharge nozzle enlargement. The top opening 6 is sealed by the top cover plate F and the studs and nuts 7, the plate serving also as an auxiliary wear plate to save the elbow body from destruction in case the liner B is worn entirely through, by neglect, and the abrasive action is carried beyond same. The semi crescent shaped opening 3 terminates at each side of the nozzle opening 4: in a floor 3 upon which the rear bottom edges of the wear liner B rest. Each floor 3 is prolonged or extended forward in the form of a longitudinally extending ledge 12 to serve as a support for the liner B, terminating at the opening 10, as indicated at 12. Ihe front end of liner B therefore overhangs the opening 10 from 12 forward to the limit of the width thereof. 1 I

At the side of the inlet end lof the elbow is formed the handhole 8 which is closed by the double wall handhole cover E fastened to the elbow body by the studs and nuts f 7 On opposite sides of and adjacent to the discharge nozzle 2 the insertion openings 10 and 10 are formed, both of which communicate with the elbow interior and are provided with the flat inclined floor 10 integral with the elbow body.. Each opening 10 extendslongitudinally from a-point adjacent the flange 2 rearwardly for a distance sufficient to accommodate the two bot-tom liners C and D and to admit of some play thereof. Merging at the elbow interior the openings 10 and 10 form a transversely extending compartment for the accommodation of both lower liners C and D. Side cover plates J and K seal the openings 10 and 10 and also prevent the lateral displacement of the liner D, being secured in position to the elbow body by the studs and nuts 11. Vertical walls 6', oppositely disposed and substantially parallel, extend from the opening 6 and connect same with the ledges 12 and 12. When arranged within the elbow body, the front end of the liner B is held against upward displacement-by the upper half circle, or archway, of the flange 2 which acts as a retaining arch. The rear end ofsaid liner B, partially supported by the floors 3, is held against upward displacement by the arch A, also integral with A. As stated, the liners C and D are formed to permit of some play in the compartment in which they are arranged and theupper edges 0 and D respectively, of said liners are slightly spaced from the lower edges B of the liner B to permit of ready insertion and removal of the liners G and D free from friction with the edges B of the liner B.

Lugs C are formed on each side of.the bottom liner C to assist in maintaining its equilibrium, being formed at a point thereon somewhat in the rear of the forward end 14:. The hook holes 13 are provided in each those C of liner C, but they must extend laterally to each side cover plate J and K for light contact therewith to maintain the liner D against lateral displacement. Hook holes similar to holes 13 in liner 0 may be formed in liner D within which a hook may be inserted for removing same, said holes being formed in the lugs, as at 13.

Bottom liner C is mounted within the elbow bore by thrusting same through either, opening 10 to the elbow center and then projecting same laterally and forward into the discharge opening 2 until the lugs C contact with the front edge of the opening 10. Thereupon, the front end 14 of the liner C illi-be substantially flush with the face of the discharge opening fiange'2'. The linerhD is then inserted until its concave wear surface is in'alinement with the wear surface of the liner C. In thisposition it is held against lateral displacement by the side plates J andK with which the liner lugs lightly contact. Ihe liner C is confined against lateral movement by the elbow body itself, and against rearward movement by the liner D.

In the modification shown in Fig. 10 the forward end of the liner B is made lighter and thinner at B" where a minimum amount of wear may occur either when the elbow and liner are very long, .or when the entire fitting is used merely as an elbow Without the steam jet.

The rear cover plate G is semi crescent in form and is provided with stud holes 15 for engagement with the studs 5, and the semi circular opening G within which the flange H of the nozzle H is arranged.

When the liners B and C are installed within the elbow fitting the bore thereof at the discharge opening 2 is substantially the same as the bore of the inlet opening 1, and to accommodate the liners B and Cl therein the elbow interior at the discharge opening is enlarged in proportion to the thickness of the liners which are formed to permit of some play'within the elbow body.

I I claim:

1. In a suction machine for material PO11- veying conduits of the class described the combination of an elbow body, an opening in the rear wall of the elbow, a second opening in said rear wall partially encompassing said opening a removable segmental Wear liner forming the upper half bore of said elbow arranged within same, one end of which liner is arranged within said second named opening and the opposite end thereof extending forward into the discharge open- Linseed ing said opening, a removablesegmental wear liner forming the upper half bore of said elbow arranged'within same, one end of said liner being arranged within said second named opening and the oppositeend thereof extending forward into the discharge opening of the elbow, oppositely disposed and longitudinally extending ledges formed at the elbow interior adapted to support said wear liner, and a cover plate sealing said second named opening, said cover plate serving also to retain said wear liner against rearward movement.

3. In a suction machine for material conveying conduits of the class described the combination of an elbow body, an opening in the rear wall of the elbow, a second opening in said rear wall partially encompass ing said opening and provided with oppositely disposed floors, a removable semicylindrical wear liner formingthe upper half bore of said elbowarranged therein, one end of said liner being arranged within said second namedopening and resting upon said floors the opposite end thereot extending forward intolythe discharge opening of the elbow, oppositely disposed and lon'Igitudinally extending ledges connected with said iioors formed at \the elbow interioradaptcd to support said wear liner, and means for sealing said second named opening said means serving also to prevent the rearwar movement of said wear liner.

ing the lateral displacement of one of said liners, the'other liner being otherwise" confined against lateral'displacement.

' 5. In an elbow for material conveying conduits of the class described the combination of an elbow body, an opening of semi crescent formation in the rear wall of the elbow, a compartment in the elbow body ad: j acent the discharge opening thereof, ledges formed at the elbow interior, extending longitudinally thereof and terminating at said compartment, a semi cylindrical wear liner arranged within said elbow, one end of said said r :ompartment and wear liner being disposed within the semi crescent opening and the opposite end thereof being disposed within the discharge opening of the elbow, said wear liner being supported upon said ledges, and said wear liner being confined against upward displacement by the elbow, body itself, and means for preventing the rearward movement. of said liner said means serving also to seal the opening of semi crescent formation.

6. In a suction machine for material conveying conduits of'the class described the combination of an elbow body provided with suction and discharge openings, a transversely extending wearliner compartmentin said elbow body adjacent the dis charge opening, lateral openings for said compartment, removable wea'r liners ar-,

opening, lateral openings for said compartment, removable segmental wear liners arranged within sald compartment and adapted for removal through said lateral openings, one of said wear liners being adapted for insertion within said compartment and subsequent forward projection into the elbow discharge opening, said wear liner being confined against. rearward displacement by the other liner and-against lateral displacement by the elbow body, cover plates V j sealing said lateral openings, and means for i l. In afs'nction machine for material 0011- fastening the cover plates to the elbow, body.

8. In a suction machine for material conveying conduits of the class described the combination of an elbow body provided with suction and discharge openings, a wear liner compartment in the elbow body adjacent the discharge opening thereof, lateral openings forsaid compartment, removable segmental wear liners arranged within said compartment and adapted for removal through said lateral openings, one of said liners being adapted for forward projection beyond the j-forward terminal of said compartment, .co'ver plates for sealing said lateral openings, and means for fastening said cover plates.

9. In an elbow for material conveying conduits of the class described the combination of an elbow body provided with inlet and discharge openings, said discharge opening being enlarged to accommodate wear liners,

a liner insertion opening in the rear wall of the elbow, oppositely disposed ledges -ro vi led at the elbow interior and exten ing longitudinally thereof, a removable segmental wear section forming the upper half bore of the elbowarranged within same and hHDPOl'tQd by said'ledges, said wear section havii its rear end arranged within the liner insertion opening the top of which serves to retain the wear section against upward displacement, and a cover plate sealing the liner insertion opening.

10. In an elbow for material conveying conduits of the class described the combination of an elbow body provided with inlet and discharge openings, said discharge opening being enlarged to accommodate wear liners, a liner insertion opening in the rear wall oi. the elbow, oppositely disposed ledges provided at the elbow interior and extending longitudinally thereof, a removable segmental-wear section forming the upper half bore of the elbow arranged within same and said discharge opening and supported by'said ledges, said wear section having its rear end arranged within the liner insertion opening the top of which i serves as an abutment against upward displacement of the wear liner, and means for preventing rearward displacen'ient of the wear section said means serving also to seal the liner insertion opening.

11. In an elbow for material conveving conduits of the class described the combination of an elbow body provided with inlet and discharge openings, said discharge opening being enlarged to accommodate wear liners, a liner insertion opening in the rear wall of the elbow, an opening in the-top of the elbow, oppositely disposed ledges provided at the elbow interior and extending longitudinally thereof, a removable segmental wear liner forming the upper halt bore ot' the elbow arranged within same andsupported by said ledges, said wear liner having its rear end arranged within the liner inserti on opening and its opposite end within the discharge opening enlargement, a cover plate sealing the opening in the elbow top, and a cover plate sealing the liner insertion opening.

12. In a suction machine for material conveying conduits oij the class described the combination of an elbow body provided with inlet and discharge openings, said discharge opening being enlarged to accommodate wear llopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

liners, a liner insertion opening in the rear wall of the elbow body, a wear linen compartment within the elbow body ad]acent the discharge opening and having lateral openings, removable segmental wear liners arranged within said compartment and adapted for removal through said lateral openings, cover plates sealing said lateral openings, a removable segmental wear liner forming substantially the upper half bore opening being enlarged to accommodate wear liners, a liner insertion opening in said rear wall, a transversely extending wear liner compartment within the elbow body adjacent the discharge opening, lateral openings I for said compartment, removable segmental wear liners arranged Within said compartment and adapted for removal through said lateral openings, oppositely disposed ledges provided at the elbow interior and extending longitudinally thereof and terminating at said compartment, a removable segmental wear liner forming substantially the upper half bore of the elbow and arranged within same and supported by said ledges, said wear liner having its rear end arranged within. the liner insertion opening and its opposite end within the discharge opening enlargement, said upper liner being retained against upward displacement by the elbow body, and a cover plate sealing the liner insertion opening, said cover plate serving also as a means for preventing the rearward movement of the upper liner.

In testimony whereof, I aliix my signature in the presence of two witnesses. LORNE A. GRIFFIN. W'itnesses:

ANGUS F. ROWAN, EARNEST A. SKINNER.

Washington, D. G. 

